Operating device for motor-driven pumps



Sept. 8, 1925. 1,552,579

H. E. SMITH OPERATING DEVICE FOR MOTOR DRIVEN PUMPS 2 sheetiheit 1 Filed May 1'7, 1923 INVENTOR. M w ldl M.

by XV W/707ney.

Sept. s, 1925. 1,552,5

H. E. SMITH OPERATING DEVICE FOR MOTOR DRIVEN PUMPS Filed May 17, 1923 2 Sheets-Shoot 2 luvemorz.

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by {WM Patented Sept. 8, 1925.

UNITED STATES HUBER'I ELWELL SMITH, or LONDON, ENGLAND.

OPERATING DEVICE FOR MOTOR-DRIVEN PUMP-S.

Application filed May 17, 1923. Serial No. 639,687.-

To all whom it may concern:

Be it known that I, Hues-RT ELwnLL SMITH, a subject of the King of Great Britain and Ireland, residing at 6 London Street, London, WV. 2, England, have invented new and useful Improvements in an Operating Device for Motor-Driven Pumps (for which I have filed application in England on the 30th May, 1922, patent application No. 15,185/1922), of which the following is a specification.

This invention relates to gasoline lighting plants, that is to say toapparatus in which a small percentage of gasoline or other suitable hydrocarbon is admixed with air for the purpose of lighting and heating in small towns, villages, country houses, factories and the like. Such apparatus includes an air-pump, a device for supplying and vapourizing gasoline and a floating holder for air or mixture, and is commonly driven by a water motor. The head of water available for the purpose differs greatly in different places; and it has hitherto been necessary for manufacturers to provide several different types of motor for a given size of gasoline plant, in order approximately to suit all the circumstances that are encountered in practice.

The object of this invention is a standard ized gasoline lighting plant which may readily be adapted to varying circumstances without replacement of the driving motor.

More specifically the invention is a combination of a water-motor and air-pump in a gasoline lighting plant, with a lever rocked by the motor and driving the air-pump, and means for varying the ratio of the lever arms at which the pump and motor are respectively set.

A preferred embodiment of the invention comprises a reciprocating water-motor and a reciprocating air-pump set with their axes parallel, and connected together by a lever which fulcrums on a link pivot-ed to a frame member extending at right angles to the axes of the pump and motor and in their plane. One of the three points of connection tothe lever, that is to say, the fulcrum where the link is connected, or the point of connection of the motor, or the point of connection of the pump, is made adjustable 1 along the lever. Most conveniently the link In Figure 1 a is a pumping bell o-ined by a rod 6 to a lever 0 which is pivoted at its distant end upon a link 03. The cylinder of the water motor is indicated at 6. Its piston rod 7 is guided by means of a bracket 9 to move in a straight line, and has a pin and slot connection with the lever 0.

For the purpose of the invention the link (Z is pivoted on a frame member h, and provision is made for adjusting it along this member and along the lever a. The adjustment may if desired be continuous, but it is sufiicient to provide as shown a number of holes 70 in the lever with corresponding holes Z in the frame member to receive the pins by which the link 03 is joined to the lever and frame member respectively. By shifting the link from one position to another the ratio of the lever arms at which the water motor and the pumping bell respectively operate can be varied. Links of different lengths may be provided for different settings if desired.

In the construction of Figure 2 the frame member m has openings n in it of sufficient size to receive the cylinder 0 of the water motor, which can be secured in any one of the holes by bolting its flange p to the frame member. The piston rod 9 of the water motor can correspondingly be connected with the lever r at any one of the holes 8 corresponding with the openings a. As before the lever is pivoted upon a link 2. and is connected at its end with the piston rod u of the pumping bell.

If the openings 01 are lengthened until they coalesce the adjustment may be made continuous, but. for practical purpose it is sufficient to provide a plurality of openings covering the desired range of leverage.

As the size of the floating holder controls the output of the machine, further standardization can be made by using one size of motor and pumping bell for a range of many models varying simply the 'size of the flouting holder and other standard equipment for other parts of the apparatus.

What I claimis:

1. In a gasolinelighting plant the combination of a reciprocating air-pump, 'a reciprocating water -motor parallel with :leaid air-pump, a frame supporting said pump and motor, a frame==member -extending -at right angles to the axis of said pump'and motor and in their p1ane,"a link'pivote'dpn said frame member, a lever connected to Said link and Zto the n1ovinfg parts of said 1notor"and pump, and means "for'varying the relativeflengt hs of said lever "from the link to the motor and tothe pump respec tively.

2. In a gasoline lighting plant the combination of a reciprocating Water-motor, a reciprocating air-pump, a. lever pivotally connected to the moving parts! of said motor and pump and having a plurality of per- -forations= therein, .;a frame member beneath said lever and having corresponding perf-orati'ons, anda link adapted to be connected with saidleverand said frame member at "any'pair of corresponding perforations.

In testimony whereof I have signed my name to this specification.

'HUBERT EDWEIJL SMITH. 

